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IMPORTANT! How to update to 10.8.5!

Please note the 10.8.5 supplemental update: http://www.tonymacx86.com/391-os-x-10-8-5-supplemental-update-1-0.html

This update contains an updated AppleHDA, so you will need to install your "OS X Support Kexts" using the ProBook Installer (version 6.1.6 or newer) after rebooting as you'll notice you've lost audio.

Essentially, the procedure is the same as post update to 10.8.5. See post #1.


Updated my 4540s without any issues making sure I reinstalled the OSX support Kexts.
 
The following kext updated in 10.8.5 supplement
Code:
AppleHDA.kext	
IOBluetoothFamily.kext	
IOPlatformPluginFamily.kext
IOUSBFamily.kext
System.kext
backup AppleHDA.kext and reinstall it before reboot.
 
backup AppleHDA.kext and reinstall it before reboot.

No. Follow the instructions in the guide. The new ProBook Installer can patch any AppleHDA.kext, and since this update includes an update, it is best to have it create a patched AppleHDA from the updated version instead of doing a rollback.
 
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